Washington County, Missouri Water Systems

Washington County, Missouri

18 community water systems on record — 11 active, 7 inactive.

Every active community water system nationwide must produce a Consumer Confidence Report under the EPA's revised rule, effective for reports due July 1, 2027.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Missouri’s official records. Always confirm current status with Missouri before making decisions based on this information.

Community water systems in Washington County, Missouri

System name	City	Population served	Status
ANTHONIES MILL RESORT SUBDIVISION	BOURBON	214	Active
CABREVA ACRES	IMPERIAL	27	Inactive
CALEDONIA	BOX 87	100	Inactive
CALEDONIA PWS	CALEDONIA	130	Active
COUNTRY HILL MOBILE HOME COURT	CALEDONIA	25	Inactive
GRANDVIEW PLAZA MHP	CADET	179	Inactive
HARPER VALLEY TRAILER PARK	UNION	55	Inactive
IRONDALE PWS	IRONDALE	420	Active
L & M MOBILE HOME PARK	POTOSI	50	Inactive
MINERAL POINT PWS	MINERAL POINT	231	Active
MO AMERICAN ROGUE CREEK UTILITIES	CHESTERFIELD	276	Active
POTOSI EAST	POTOSI	900	Active
POTOSI PWS	POTOSI	2,527	Active
SPRING LAKE SUBDIVISION	TROY	25	Active
SUMMIT ACRES MHP	POTOSI	36	Inactive
THE LEGACY RANCH	IRONDALE	25	Active
WASHINGTON COUNTY PWSD 1	POTOSI	503	Active
WASHINGTON COUNTY PWSD 2	BELGRADE	175	Active